Hi Matt.

Thank you so much for your input - it's jumped me over a mental hurdle!

I actually have the links weighted but in this organisation it doesn't add much.  It might in the others.

I hadn't thought of an out-link sizing exercise.  I'll play with this idea tomorrow.  Thanks for the idea.

One of the problems I have is weighting each risk category and then weighting each tie, and then weighting the projects by value.  My experiments seem to distort the data.  I suspect because this is not the best medium to represent the results.

Your last point is the most salient!  I have broken my own rule.  It's the ties that matter not the nodes!

I really appreciate your input.  Thanks again.

Regards Graham